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Answer choices are:

  1. Acetylcholine
  2. Dopamine
  3. Glutamate
  4. Serotonin.

Correct answer choice is:

2. Dopamine.

Explanation:

Dopamine is a neurotransmitter, one of the chemicals that is held for sending signals in within the nerve cells (neurons) of the brain. Surprisingly some neurons really produce dopamine. Any, in a portion of the brain named the substantia nigra, are the cells that expire through Parkinson's syndrome.

Dopamine is a neurotransmitter that is involved in mood, reward, addiction, and motor behavior.

Further Explanation  

Neurotransmitters  

  • These are types of chemical messages whose function is neurotransmission. Neurotransmission involves transmission of information or signals through a synapse by neurotransmitters.
  • The signal is transmitted between two neurons, a pre-synaptic neuron which releases the neurotransmitter and the post-synaptic neuron that receives the neurotransmitter.
  • Signals carried by neurotransmitters may inhibit or stimulate a given cell depending on the type of receptor and the neurotransmitter involved.

Major types of neurotransmitters  

Dopamine  

  • It is a neurotransmitter that is associated with addiction, mood, movement, pleasure, motivation and satisfaction.  

Serotonin  

  • It is believed to bring about feelings of happiness and well-being. Additionally, it regulates the sleeping cycle together with intestinal movements.

Acetylcholine  

  • It is the major neurotransmitter that is involved in learning, thoughts and memory. It is also responsible in muscle action activation.  
  • Additionally, this neurotransmitter is associated with attention and perception.

Glutamate  

  • It is involved in cognitive activities such as learning and memory. It also regulates the development of the brain together with nerve contacts creation.

GABA  

  • It is an inhibitory neurotransmitter that calms the firing neurons in the CNS. High levels of this neurotransmitter helps improve mental focus and relaxation, however, it can cause anxiety.  

Other neurotransmitters include;

  • Adrenaline
  • Noradrenaline  
  • Endorphins  

Keywords: Neurotransmitters, dopamine  

Learn more about:

  • Neurotransmitters; https://brainly.com/question/12564824
  • Dopamine; https://brainly.com/question/3552597
  • Role of Dopamine: https://brainly.com/question/3552597

Level: High school  

Subject: Biology  

Topic: Response and coordination  

Sub-topic: Neurotransmitters  

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